Subject + 理解 + Object
The verb 理解 (lǐjiě) means "to understand" or "to comprehend." It emphasizes grasping the meaning or reasoning behind something, often at a deeper level than simply knowing a fact. For example, 请理解我 means "please understand me."
我能理解你现在的心情,别太难过了。
Wǒ néng lǐjiě nǐ xiànzài de xīnqíng, bié tài nánguò le.
I can understand how you feel right now. Don't be too sad.
这篇文章太难了,我完全不理解。
Zhè piān wénzhāng tài nán le, wǒ wánquán bù lǐjiě.
This article is too difficult; I don't understand it at all.
希望你能理解我为什么做出这个决定。
Xīwàng nǐ néng lǐjiě wǒ wèishénme zuòchū zhège juédìng.
I hope you can understand why I made this decision.